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Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects
07:32

Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

Published on: September 1, 2016

Quantifying sway through surface deflection patterns: a novel approach using distributive tactile sensing.

M T Elliott1, I Petra, X-H Ma

  • 1Clinical Bimedical Engineering Research Group, School of Engineering and Applied Science, Aston University, Birmingham, UK.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
|November 14, 2009
PubMed
Summary
This summary is machine-generated.

This study introduces a novel distributive sensing system for real-time 3D object tracking. The technology accurately measures pendulum movement, showing promise for assessing patient balance and sway.

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Area of Science:

  • Biomedical Engineering
  • Sensor Technology
  • Robotics

Background:

  • Distributive sensing has been used for static object localization.
  • Assessing patient balance and sway is crucial for clinical diagnostics.
  • Existing methods may lack real-time, multi-dimensional tracking capabilities.

Purpose of the Study:

  • To extend distributive sensing for tracking moving objects in 3D.
  • To develop a novel system for measuring patient balance and sway.
  • To evaluate the real-time tracking accuracy of the developed system.

Main Methods:

  • An experimental setup with a pendulum on a steel plate was used.
  • Three low-cost deflection sensors captured plate deflection data.
  • A neural network on a field-programmable gate array processed sensor signals for real-time analysis.

Main Results:

  • The system accurately tracked pendulum position in real-time across three dimensions.
  • A mean tracking error of approximately 6% was achieved.
  • The system demonstrated sensitivity for discriminating between balance and sway.

Conclusions:

  • The extended distributive sensing technique is effective for real-time 3D motion tracking.
  • The developed system shows potential for pragmatic clinical application in balance assessment.
  • This approach offers a sensitive and accurate method for quantifying sway and balance.